Yeah, I forget I have an FB page too. I made it when I had a surplus of chicks and was fearful I couldn't find homes for them all. Then when things got busy I forgot about it.Bielefelders sure are a very special breed that will be a good member of any flock. They are so calm and never fight other chickens. Did you try to switch the roos between Rhodefelder pen and Bielefelder pen to see what happens?
I forgot that you even have a facebook page, which is not list here or on your website. I don't know how people find it.
I really dislike FB and am only there to makes some sales. I like hanging out here, it seems safe, but I have an inherent distrust of FB.